CN219458877U

CN219458877U - Ball screw stepping motor

Info

Publication number: CN219458877U
Application number: CN202320490113.9U
Authority: CN
Inventors: 钟乘财; 廖文瑜; 梁炼诚
Original assignee: Guangzhou Hanbang Motor Co ltd
Current assignee: Guangzhou Hanbang Motor Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-08-01
Anticipated expiration: 2033-03-15

Abstract

The utility model discloses a ball screw stepping motor, which comprises a ball screw, a front end cover, a first shaft sleeve, a stator iron core, a rear end cover, a first bearing, a second shaft sleeve, an adjusting nut, a first rotor iron core, magnetic steel, a second rotor iron core and a second bearing, wherein the ball screw is connected with the ball screw in a matched manner; the ball screw stepping motor realizes the integration of the screw and the motor shaft, improves the stability of transmission precision, prolongs the service life, reduces the installation procedures and reduces the deviation of concentricity and straightness caused by careless installation.

Description

Ball screw stepping motor

Technical Field

The utility model relates to the technical field of motors, in particular to a ball screw stepping motor.

Background

In the fields of industrial mechanical automation and the like, linear transmission is required, engineering personnel often connect a stepping motor with a screw rod module through a coupler, and the stepping motor is usually connected with the screw rod to fixedly rotate as power to drive a nut, so that the rotary motion is converted into linear motion along the axis direction of the screw rod, and a workbench is arranged on the nut to be driven to linearly feed; but the lead screw is connected with the motor through the shaft coupling in the process of installing the lead screw module and the motor, is comparatively complicated through this kind of connected mode, and the assembly is comparatively time-consuming, reduces assembly efficiency, like motor lead screw assembly carelessly, produces concentricity deviation easily, influences the transmission precision of motor, and this kind of connection fixed mode is used for driving little loaded article and removes usually, when the article of drive carrying heavy load removes, because motor lead screw and shaft coupling stress surface are too little unbalanced, leads to the driven stationarity relatively poor, and easy lead screw produces smooth tooth with the shaft coupling, and transmission positioning accuracy is poor etc. has influenced the application range of lead screw motor.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide a ball screw stepping motor which is used for solving the existing defects.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the ball screw stepping motor comprises a ball nut, a ball screw, a front end cover, a first shaft sleeve, a stator core, a rear end cover, a first bearing, a second shaft sleeve, an adjusting nut, a first rotor core, magnetic steel, a second rotor core and a second bearing, wherein the ball screw is connected to the ball screw in a matched mode, the first shaft sleeve and the second shaft sleeve are sleeved and fixed on the ball screw, the second bearing and the first bearing are sleeved and fixed on the ball screw, meanwhile, the second bearing and the first bearing are respectively and fixedly connected on the front end cover and the rear end cover, the adjusting nut is arranged at the center of the rear end cover, and the rear end cover and the front end cover are respectively and fixedly connected on the stator core.

Preferably, the stator core is connected with a first rotor core and a second rotor core in a matched manner.

Preferably, the first rotor core and the second rotor core are respectively and fixedly connected to the ball screw.

Preferably, the ball screw is provided with magnetic steel between the first rotor core and the second rotor core.

Preferably, the first sleeve is located between the second bearing and the second rotor core, and the second sleeve is located between the first rotor core and the first bearing.

(III) beneficial effects

The ball screw stepping motor provided by the utility model has the advantages that: the device realizes the integration of the screw rod and the motor shaft; the problem that appears in adopting the shaft coupling to fix has been avoided, promptly because the shaft coupling adopts hexagon socket screw locking atress face too little unbalance, the big and long-time use of load produces mechanical abrasion, can lead to transmission positioning accuracy to drop, seriously can lead screw smooth tooth's problem to improve the stability of transmission accuracy, improve life, reduce the installation process, reduce the deviation of concentricity and straightness that causes because of the installation carelessness.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic cross-sectional elevation view of the present utility model.

In the figure: 1. a ball nut; 2. a ball screw; 3. a front end cover; 4. a first sleeve; 5. a stator core; 6. a rear end cover; 7. a first bearing; 8. a second sleeve; 9. an adjusting nut; 10. a first rotor core; 11. magnetic steel; 12. a second rotor core; 13. and a second bearing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, an embodiment of the present utility model is provided: the ball screw stepping motor comprises a ball nut 1, a ball screw 2, a front end cover 3, a first shaft sleeve 4, a stator iron core 5, a rear end cover 6, a first bearing 7, a second shaft sleeve 8, an adjusting nut 9, a first rotor iron core 10, magnetic steel 11, a second rotor iron core 12 and a second bearing 13, wherein the ball screw 2 is connected to the ball screw 1 in a matched manner, the first shaft sleeve 4 and the second shaft sleeve 8 are sleeved and fixed on the ball screw 2, the second bearing 13 and the first bearing 7 are sleeved and fixed on the ball screw 2, meanwhile, the second bearing 13 and the first bearing 7 are respectively and fixedly connected to the front end cover 3 and the rear end cover 6, the adjusting nut 9 is arranged at the center of the rear end cover 6, the rear end cover 6 and the front end cover 3 are respectively and fixedly connected to the stator iron core 5, the first rotor iron core 10 and the second rotor iron core 12 are respectively and fixedly connected to the ball screw 2 in a matched manner, the ball screw 2 is positioned between the first rotor iron core 10 and the second rotor iron core 12, the first shaft sleeve 4 is positioned between the magnetic steel 11, the first shaft sleeve 4 is positioned between the second rotor iron core 12 and the second rotor iron core 12, and the first rotor iron core 8 is positioned between the first rotor iron core 10 and the second rotor iron core 7;

specifically, when in use, firstly, the integration of the screw rod and the motor shaft is realized, and the integrated technological process is divided into five stages: the steps of preheating treatment, rough machining, semi-finishing, finishing and finishing are that straightening and heat treatment processes are carried out in the screw machining process, so that the screw is guaranteed to be precise, bending deformation is prevented, when the motor is used, the rotor iron core 10 is a permanent magnet, when current flows through windings on the stator iron core 5, a vector magnetic field is generated, the magnetic field drives the first rotor iron core 10 and the second rotor iron core 12 to rotate for a certain angle, pulse signals are input to the motor, the first rotor iron core 10 and the second rotor iron core 12 rotate towards one direction, the first rotor iron core 10 and the second rotor iron core 12 rotate to carry out rotary motion with the ball screw 2, and the rotary motion is converted into linear motion of the ball nut 1 along the axis direction of the ball screw 2.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. Ball screw step motor, including ball nut (1), ball screw (2), front end housing (3), first axle sleeve (4), stator core (5), rear end cap (6), first bearing (7), second axle sleeve (8), adjusting nut (9), first rotor core (10), magnet steel (11), second rotor core (12) and second bearing (13), its characterized in that: the ball nut (1) is connected with the ball screw (2) in a matched mode, the ball screw (2) is fixedly sleeved with the first shaft sleeve (4) and the second shaft sleeve (8), the ball screw (2) is fixedly sleeved with the second bearing (13) and the first bearing (7), meanwhile, the second bearing (13) and the first bearing (7) are respectively and fixedly connected to the front end cover (3) and the rear end cover (6), meanwhile, the adjusting nut (9) is arranged at the center of the rear end cover (6), and the rear end cover (6) and the front end cover (3) are respectively and fixedly connected to the stator core (5).

2. The ball screw stepper motor of claim 1, wherein: the stator core (5) is internally matched and connected with a first rotor core (10) and a second rotor core (12).

3. The ball screw stepper motor of claim 1, wherein: the first rotor core (10) and the second rotor core (12) are respectively and fixedly connected to the ball screw (2).

4. The ball screw stepper motor of claim 1, wherein: the ball screw (2) is positioned between the first rotor core (10) and the second rotor core (12) and is provided with magnetic steel (11).

5. The ball screw stepper motor of claim 1, wherein: the first shaft sleeve (4) is positioned between the second bearing (13) and the second rotor core (12), and the second shaft sleeve (8) is positioned between the first rotor core (10) and the first bearing (7).